Merged latest commit(MR957)

ci-scripts/buildOnVM.sh

ci-scripts/xml_files/gnb_nr_ue_usrp_run.xml

ci-scripts/xml_files/gnb_nr_ue_usrp_run_multi_thread.xml

cmake_targets/CMakeLists.txt

common/utils/LOG/log.h

common/utils/threadPool/thread-pool.c

common/utils/threadPool/thread-pool.h

common/utils/threadPool/thread-pool.md

doc/FEATURE_SET.md

doc/RUNMODEM.md

executables/nr-softmodem.c

executables/nr-ue.c

executables/nr-uesoftmodem.c

executables/nr-uesoftmodem.h

executables/softmodem-common.h

nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_constants.h

openair1/PHY/INIT/nr_init.c

openair1/PHY/INIT/nr_init_ue.c

openair1/PHY/NR_REFSIG/nr_gold_ue.c

openair1/PHY/NR_TRANSPORT/nr_dci.c